How to enable Check In for an activity in FeetPort?

Admin user can configure check in requirement for the 

1. From Navigation Menu, go to Activities under the Configuration module.
2. Choose the activity.
3. Activity should contain field of Mobile number.
4. Go to Activity Settings and click on 'Workflow States'.
5. Go to Advanced Settings.
6. Then click on Allow Check In option to select it.
7. Click on back icon and then click Save to save the activity.